
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

/*
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/**
 *
 * @author 张生志
 */
public class GetAddDemo {
    public static void main(String[] args) throws IOException {
        
        
        InputStreamReader in2=new InputStreamReader(System.in);
        BufferedReader in3 = new BufferedReader(in2);
        
        
        System.out.println("请输入第一个数：");
        float first=Float.parseFloat(in3.readLine());
        System.out.println();
        System.out.println("请输入第二个数：");
        float second=Float.parseFloat(in3.readLine());
        System.out.println();
        System.out.println("请输入第三个数：");
        float third=Float.parseFloat(in3.readLine());
        System.out.println();
        System.out.println("这三个数的和是");
        System.out.println(first+second+third);
    }
 
}
